PCI\VEN_8086&DEV_51BC
Alder Lake PCI Express x4 Root Port #5 driver
PCI\VEN_8086&DEV_51BC is the Intel Corporation Alder Lake PCI Express x4 Root Port #5, a chipset device. It is a platform part of the chipset or processor. Windows usually works without its named driver, but the chipset package gives it the right name and power settings. Get it from Windows Update or your PC maker first; the chip maker's own package is on intel.com.
Device details
| Hardware ID | PCI\VEN_8086&DEV_51BC |
|---|---|
| Device name | Alder Lake PCI Express x4 Root Port #5 |
| Maker | Intel Corporation (PCI vendor ID 8086) |
| Device type | Chipset |
| Driver guide | Get the Intel chipset driver |
| Latest official package | Intel Chipset Device Software (SetupChipset.exe) 10.1.20658.8883, January 8, 2026 |
How to install the driver for Alder Lake PCI Express x4 Root Port #5
- Confirm the ID. In Device Manager, right-click the device, open Properties, then Details, and pick Hardware Ids. The first line should start with
PCI\VEN_8086&DEV_51BC. - Try Windows Update. Settings, Windows Update, Advanced options, Optional updates. Chipset INF updates sometimes appear here.
- Check your PC maker. Enter your model or serial number on its support site and look under Chipset.
- Use the chip maker's package. Intel Chipset Device Software (SetupChipset.exe) on intel.com. Our get the intel chipset driver guide explains which package fits.
- Restart and check. Device Manager should list it under System devices with its proper name.
Other Intel chipset IDs
VEN_8086&DEV_51B1Alder Lake PCI Express x1 Root Port #10VEN_8086&DEV_51B2Alder Lake PCI Express x1 Root Port #11VEN_8086&DEV_51B3Alder Lake PCI Express Root Port #12VEN_8086&DEV_51BBAlder Lake-P PCH PCIe Root Port #4VEN_8086&DEV_51BDAlder Lake-P PCH PCIe Root Port #6VEN_8086&DEV_51BFAlder Lake PCH-P PCI Express Root Port #9VEN_8086&DEV_51EFAlder Lake PCH Shared SRAMVEN_8086&DEV_51FCAlder Lake-P Integrated Sensor Hub
Device names: The PCI ID Repository, public data. We never host driver files: downloads come from the maker.